Circuit-controlling instrument.



E. W. VOGEL.

CIRCUIT CONTROLLING INSTRUMENT.

APPLICATION men JUNE 25.1914.

1 ,1 89,3 1 6. Patented July 4, 1916.

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1,189,316. 1 Patented July 4,1916.

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B? My A TTORNE E. W. VOGEL.

CIRCUIT CONTROLLING INSTRUMENT.

APPLICATION FILED JUNE 25. 1914.

1 ,1s9,31 e. Patented July 4, 1916.

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E. W. VOGEL,

CIRCUIT CONTROLLING INSTRUMENT.

APPLICATION FILED JUNE 25. 1914.

1,189,316. Patented July 4,1916.

5 SHEETS-SHEET 4- W/TNESSES /v VEN TOR.

W v 5y V 2 ATTORNEV5 E. w. VOGEL.

CIRCUIT CONTROLLING INSTRUMENT. APPLICATION FILED JUNE 25. IBM;

1,1 89,3 1 6. Patented July 4, 1916.

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"onrrnn srn'rns PATENT onn EUGENE W. VOGEL, OF OAK PARK, ILLINOIS,ASSIGNOR TO CHICAGO RAILWAY SIGNAL AND SUPPLY COYMPANY, OFCAHPENTEBSVILLE, ILLINOIS, A CORPORATION OF ILLINOIS.

CIRCUIT-CONTROLLING INSTRUMENT.

Specification of Letters Patent.

Patented July 4;, 1916.

Application filed I 11115 25, 1914.. Serial No. 847,291.

To all whom it may concern Be it known that I, EUGENE W. VOGEL,

. specification.

My inventlon relates to an instrument for closing or opening electriccircuitsthrough the deflection of a railroad rail whlch takes place whena train passes over the rail, in-.

strunients of this sort being used particularly in railway signalingapparatus of various sorts, for example, for the purpose of actuating ahighway signal designed to give notice of the approach of a train.

The invention contemplates, among other features, providing a device ofthis character which will respond instantaneously to the deflection ofthe rail, so as to immediately closeor open the circuit of the signalingdevice, but which is so constructed and has its operative parts sorelated that when the pressure is taken off the rail the moving parts ofthe mechanism will be slow to resume their former or normal positionswhereby, if the train is moving slowly so that an appreciable intervalof time occurs between the deflection due to one truck and that of thenext succeeding truck of the train, the said moving parts of themechanism will not vibrate back and forth in response to the vibratorymovements of the rail but will remain continuously in the position towhich they are moved by the impulse of the first wheel passing over therail.

The invention further contemplates the provision, in a device of thissort, of a cushioning or elastic relationship between the parts of themechanism operated by the deflection of the rail whereby such mechanismis not destroyed or injured if such defiection is excessive.

A further object of the invention is to provide a circuitclosing'instrument of this sort with an interlocking or interferencemecha-' nism which, if first actuated, operates to prevent saidinstrument from functioning when the part of the rail to which itordinarily responds is deflected. The provision of the circuitcontrolling instrument with a'mechanism of this sort adapts it for useon a track upon which the trafiic moves in both directions.

ne invention has for further objects such other new and improvedconstructions, ar rangements and devices relating to circuit closinginstruments as will be hereinafter described and claimed.

The invention is illustrated in the accompanying drawings in connectionwith a highway signaling bell for a single track road. ihe sameinstrument may be used on a double track road by simply omitting certainparts and mechanisms as will be apparent from the following description.v

In the drawings, Figure l is a fragmentary plan view of a circuitclosinginstru-- ment embodying the principles of my invention and provided withan interlocking or interference mechanism adapting the instrument'foruse on a single track road, the mechanisms being shown as applied to oneof the rails of said track; Fig. 2, a side elevation of the parts shownin Fig. 1; Fig. 3, a sectional view, on an enlarged scale, taken on line33 of Fig. 1; Fig.4, a sectional plan view of the parts shown in Fig. 3;

Figs. 5 and 6, sectional views taken on lines 5-5 and 6-6 respectively,of Fig. 3; Fig. 7 an enlarged sectional view on line 77 of Fig. 6; Fig.8, a diagram showing the application of the circuit controllinginstrument for actuating a highway signal bell; Fig. 9, a fragmentarysectional view taken on line 99 of Fig. 1; Fig. 10, a sectional view, onan enlarged scale, taken on line 10-10 of Fig. 1, and Fig. 11, a planView, with parts in section, of the interference mechanism shown in Fig.10.

Like characters of reference designate like aarts in the several figuresof the drawings.

Referring first to the diagram designated Fig. 8, A designates arailroad track over which the traffic passes in both directions, 13 ahighway, C a signaling bell located near the highway, and adapted to beactuated so as to automatically give indication of the approach of atrain fro-m either direction, D a normally open circuit closinginstrument adapted to be actuated by the deflection of the rail 25 oftrack A to set the signal bell ringing on the approach of a train to thehighway from the left side of the same, D a similarly constructedinstrument but normally closed, the function of which is to break thecircuit and silence the highway bell when the train passes the highway,D a normally open circuit'closing device on the other side of thehighway from instrument D and operating to set the highway bell ringingon the approach of a train toward the highway from the right sidethereof, and E, E interferencemechanisms adapted to prevent the circuitclosing instruments D, D from functioning on the passage of trainsmoving toward said instruments respectively, in the directions from thehighway. The highway bell C, for the purposeof illustrating anapplication of the circuit controlling instrument, which forms thesubject matter of this application, to a concrete situation, I haveshown as the highway bell disclosed in my co-pending application SerialN'o. 843,226 filed June 5, 1914. It willbe obvious that the circuitcontrolling instrument might be used in very difierent situations. Theinvention is not limited to its employment in connection with theparticular signaling apparatus herein shown and designated C. In thisapparatus 26 designates a bell ringing magnet, the circuit throughwhichis closed at 27, 28 by the re lay 29. Assuming the train to bemoving on track A. from left to right, when the train passes the circuitclosing instrument D the contacts 30, 31 are brought together, bydeflection of rail 25, as will be hereinafter described, closing thecircuit through relay 29 as follows: from battery 32 through a wire 33to relay 29, from the relay through wires 34, 35, 36, contact springs31,30 and wires 37, 38, back to the battery. The circuit of the ringingmagnet 26 is a shunt from the above specified circuit and is as follows:from wire through the making and breaking contact springs 39, and wire41 to the bell magnet, from the magnet through wire 42, armature 28 ofthe relay 29, contact 27, wire 43, contact springs 30 and 44 of thecircuit breaking instrument D, and wires 45 and 46 to wire 38. Relay 29is kept energized until the train reaches the highway regardless ofwhether the contacts 30, 31 remain together or not by a connection 47between wire 34 and the armature 28 of the relay which short circuitsthe track instrument D when the armature of the relay is broughtagainstcontact 27 by the initial energizationof the relay as above described.When the train reaches the highway the track instrument D is operated,as will be hereinafter described, to separate the contact springs 30,44. This reaks the circuits above described through the relay 29 and theringing magnet 26. The actuation of the highway bell C and thesubsequent silencing of the bell is accomplished in precisely the samemanner as above described by the track instrument D when a trainapproaches the highway from the right side thereof, the contact spring30 being connected'with the signal bell by a wire 48 which isacontinuation of wire 36, and by the wire 46, which is a continuation ofwire 37, running to the contact spring 31. The interference mechanism Eprevents the track instrument D from functioningin the case of trainspassing over the track from right to left. Similarly the interferenceinstrument E prevents the functioning of the track instrument D in thecase of trains moving from left to right. The track in struments D, D, Dare substantially alike. The interference mechanisms E, E are also alikein construction and function except that the positions which they occupyrelativeto thecircuit closing instruments D, D involve-a reversal ofcertain parts. I willtherefore describe the construction and operationofthe circuit closing instrument D and the interference mechanism E andwill then point out the differences in construction and operation whichcharacterizethe other devices D D and E respectively.

Referring first to Figs. 1 to 7 inclusive,

49 designates a casing having a cover 50 which is supported on anysuitable foundation, for example, upon a cement block 51 between two ofthe ties 52 onwhich the rails oftrack A are supported, the casing beingpreferably anchoredto the cement block 51 by a straight bolt 53 andU-bolts 54. The edges of plates 55 bolted to the ties 52 intervenebetween the casing 49 and the base block 51. Mounted in bearings 56 inone end of the casing 49 isa shaft 57 on which is pivoted a circuitclosing arm or lever 58,

the outer end-of which carries a fiber block 59 adapted to bear againstcontact springs 30 which are suitably securedto insulating blocks 60.Thecontact springs 30 normally standspaced from-the contact springs 31,as above described, but are brought against the springs 31 when thelever 58 is rocked. The shaft 57 has rigid therewith an arm 61 which isconnected with the lever 58 by means of a stiff coiled spring 62. Theother end of the shaft 57 projects out of the casing and has rigidlysecured thereto an arm 63, the shaft 57 and arms 61, 63, constituting,in effect a bell crank. The arm 63 is provided with a screw 64, the headof which is engaged by an arm 65 on a member 66 which is clamped to therail 25 by bolts 67. The screw 64 may be held at any desired adjustmentby a jam-nut 68. The cover 50 of casing 49 is preferably formed with astop lug 69 to limit the upward movement of the lever 58. The bottom ofthe casing 49 is formed with pocket 70 over whichis arranged a flexiblediaphragm 71 provided with a button 72 to which is pivoted a stem73, theupper end of which is threaded into the lever 58 (Fig. 6). Extendingover the pocket 70 is a flange 74 throughwhich projects a U-shaped pipe75 provided with a cap 76 (Fig. 7) having a portj77 which is closed by avalve 78. The pipe 7 5' is provided also with a pet cook 79 which may beset to vary the size of the port therethrough. The outer'curved end ofthe lever 58 is adapted to lie between a pair of perforated lugs 80formed on the end of the casing, the end of the lever being pro.- videdwith a perforation 81 which registers with the perforations in the lugs.82 designates a bolt which is normally retracted but is adapted to bethrust through the perforations in the lugs 80 and in the nd of lever 58when the mechanism E'is actuated before the actuation of trackinstrument D takes place, that is, when a train is moving from thehighway toward the instruments E, D.

The interference instrument E is shown in detail in Figs. 9, 10 and 11.The operative parts are inclosed in the casing 83 of the same generalcharacter as the casing 49 and mounted in the road-bed in the samemanner. Within this casing is a lever 84 which is similar to the lever58 except that its outer extremity has an upward bend instead of adownward bend and is formed with a boss 85. The lever is rocked throughthe deflection of the rail by. instrumentalities exactly like those bywhich the rocking movement of the lever 58is effected. Mounted in theboss 85 at the end of lever 84 is a rod 86 which extends under and bearsupon one end of a bell crank 87 mounted on a pin 88 between bosses 89,90 formed at the end of the casing 83. The other end of the bell crankis attached to a rod 91 carrying at its other end the bolt 82 abovereferred to. The rod 91 is housed between casings 83 and 49 by a pipe 92threaded into nipples 93, 94 formed on the casings 83, 49, respectivelyA spiral spring 95 interposed between follower disk 96, 97, serves toretract the rod 91 when the spring back of the rail permits lever 84 toreturn to its normal position, this movement withdrawing the bolt 82from the perforation 81 in lever 58.

The operation of the circuit controlling instrument D and theinterference instrument E, when constructed as above described, is asfollows: When a train moves over the track A from left to right thedefiection of rail 25 rocks the lever 58 and the lever flexes contactsprings 30 so as to bring the same against the contact springs 31. Thissets the highway bell ringing, as above described. If the deflection ofthe rail is excessive, that is, more than enough to bring the lever intocontact with its stop 69, the

mechanism is not injured because of the flexible connection (spring 62)between the lever 58 and the parts of the device which engage the rail.The movement of the lever upward to close the circuit at 30, 31, isquick since air can readily flow into the pocket through port 77. Thedownward movement of the lever is slow since the valve 7 8 checks theoutflow of air from the pocket 7 O, the air being forced to escapethrough the restricted port of the pet cock 79. By a proper adjustmentof the pet cock 79 the time required for the lever 58 to resume itsoriginal position may be varied as may be found expedient. As a resultof this arrangement the lever 58 instead of vibrating back and forth assuccessive trucks pass over the point on the track at which theinstrument D is located, as would be likely to happen if the train weremoving slowly and the lever could drop unhindered as soon as the railresumed its normal position after each deflection, the lever is held upin its circuit closing position until the last truck on the last car haspassed the instrument. As the wheels of the train pass the point on rail25 at which the interference instrument is located this instrument isactuated so as to thrust out the bolt 82. This, of course, does notaflect the functioning of the circuit closing instrument D since thelever 58 of the latter instrument is raised and is held up by thedash-pot arrangements just described. The interference instrument Emight also be supplied with similar dash-pot arrangements but this ishardly necessary as the friction developed by the mechanism of thisinstrument is great enough, under ordinary circumstances, to prevent themechanism from pulsating with the successive vibratory movements of therail.

' The instrument D is thesame in its construction as the instrument Dexcept that there is a different arrangement of contacts whereby thecircuit through the instrument is normally closed and is openedmomentarily when a train deflects the rail to which it is attached. Inthe drawings illustrating the instrument D it is shown as provided withcontact springs 44 against which the contacts 30 normally hear. Thecontact springs 44 have no function when the instrument is used in theposition indicated by-D, and might be omitted. When the instrument isused in the position shown at D they maintain the circuit closed throughsaid instrument except when on the passage of a train the lever 58 israised so as to lift the springs 30 (Fig. 8) out of contact therewith.In the crossing instrument D the contact spring 31 may be omitted. It ismore convenient to provide the instruments with all three sets ofcontacts so that they may be used interchangeably,

The instruments D E are in construction exactly like the instruments Dand E except that the reversed arrangement involves a reversal of therod 91 carrying the bolt 82 and a shifting of the bell crank 87 from oneside of the casing 83 to the other. To make this change possible,adapting the instruments to either relative position, the casing 49 isprovided opposite nipple 94 with a nipple 98 which, when the instrumentis used in the position indicated at D is closed by a plug 99.Similarly, the casing 83 has a nipple 100 &

which is closed by a plug 101. The casing 83 is formed with a pair ofbosses corresponding to bosses 89, 90 (Figs. 10 and 11) between whichthe bell crank 87 is pivoted,

. which are on opposite sides of the bosses 89,

90, one of which is shown in Fi 9 and designated 89 In reversing thecircuit closing and interference instruments so that they will occupythe positions indicated at D E the bell crank is shifted from itsposition between the bosses 89, 90 and pivoted between the boss 89 andthe other boss opposite thereto, the plugs 99, 101 are removed and thepipe 92 threaded into the nipples 98, 100, the rod 91 in this caseprojecting through the nipple 100.

IVhen the train going from left to right reaches the point on the trackat which the instrument E is connected to the rail, this instrument isactuated to thrust the bolt 82 into the perforation 81 in the end of thelever 58 of the circuit closing instrument so that when the first wheelof the train reaches the point on the track at which the instrument D isconnected to the rail, the lever of the instrument is not raised. Hencethe reactuation of the signaling mechanism C which would otherwise takeplace is prevented. The bell crank 57, 61, 63 or" instrument D is, ofcourse, rocked with the deflection of the rail but this movement cantake place without affecting lever 58 be cause of the flexibleconnection, spring 62, between these members. lVhen the train moves overthe track from right to left the operation is just the reverse of thatabove described. When it passes the circuit closing instrument D thehighway bell begins ringing and continues to ring until the trainreaches the circuit breaking instrument D. As soon as the train reachesthe interference instrument E this instrument is actuated to lock themaking and breaking lever 58 of instrument D so as to prevent there-actuation of the bell.

While I have described my invention in certain preferred embodiments,modiflcations might be made without departure from the principles of theinvention. Therefore I do not wish to be limited to the preciseconstructions, arrangements and devices shown and described except sofar as the same are made specific limitations in certain of the claimsherein. On a double track road the circuit closing instruments D, D

will be used one in connection with each track but without theaccompanying interference instrument. Each track would be supplied witha circuit breaking instrument such as that designated D in the drawings.

\Vhile in the claims I have specified the circuit making and breakingdevices and the interference devices as actuated by deflection of therail, I wish it to be understood that this term is meant to includethedeflection or depression of any member associated wlth the rail aswell as of the rail itself, both expedients being common and bly used inthis art.

interchangea I claim:

1. In a circuit controlling instrument, the combination with a movablecircuit making and breaking element, of actuating means therefor adaptedto be operated by deflection of a railroad rail, and an elasticinstrumentality forming the only connection -for communication of powerbetween said element and said means.

2. In a circuit controlling instrument, the combination with a pivotedcircuit making and breaking element, of a pivoted member adapted to berocked by deflection of a railroad rail, and an elastic instrumentalityforming the only connection for communication of power between saidmember and element.

8. In a circuit controlling instrument, the combination with a casing,of a circuit making and breaking element pivoted in said casing, a stopto limit the movement of said element, actuating means for said elementadapted to be operated by deflection of a railroad rail, and an elasticinstrumentality forming the only connection for communication betweensaid element and said means of power. I

1. In a circuit controlling instrument, the combination with a casing,of a circuitmakand breaking element pivoted in said casin. I stop tolimit the movement of said element, a member pivoted to the casing whichis adapted to be rocked by the deflection of a railroad rail, and aspring forming the only connection for communication of power betweensaid member and element.

In a circuit controlling instrument, the combination with a casing, of abell crank mounted in said casing with one arm outside of the same, adevice adapted to be carried by a railroad rail so as to bear upon saidarm when the rail is deflected, a circuit making and breaking elementpivoted on the shaft of said bell crank within the casing,

and a spring forming the only connectioir for communication of powerbetween the other arm of said bell crank and said element.

6. In a circuit controlling instrument, the combination with a circuitmaking and breaking element, of means actuated by the deflection of arailroad rail with respect to said instrument for moving said element inone direction, an elastic connection between said element and saidmeans, and means which operates to slow the return movement of saidelement, for the purpose described.

'7. In a circuit controlling instrument, the combination with a circuitmaking and breaking element, of means actuated by the deflection of arailroad rail with respect to said instrument for moving said element inone direction, an elastic connection between said element and saidmeans, and means constituting adash-pot which operates to slow thereturn movement of said element, for the means constituting with saiddiaphragm a single pressure chamber, and a check valve which admits airto said chamber when said making and breaking element is moved by thedeflection of the rail-and which checks the outflow of the same on thereturn movement of said element.

9. In a circuit controlling instrument, the combination with a circuitmaking and breaking element, of means actuated by the deflection of arailroad rail with respect to said instrument, an elastic connectionbetween said element and said means, 21 diaphragm against which saidelement bears, means constituting with said diaphragm a single pressurechamber, a check valve which admits air to said chamber when said makingand breaking element is moved by the deflection of the. rail and whichchecks the outflow of the same on the return move ment of said element,and a valveto allow the escape of air from said chamber which may be setto vary the outflow therefrom.

10. In acircuit controlling instrument, the combination with a casing,of a making and breaking lever pivoted in said casing, means actuated bythe deflection of a railroad rail for raising said making and breakinglever, an elastic element connecting the means with the lever, saidcasing being formed under one end of said lever with a pocket, adiaphragm arranged to close said pocket, and a connection between saidlever and diaphragm.

11. In a circuit controlling instrument, the combination with a casing,of a making and breaking lever pivoted in said casing, means actuated bythe deflection of a railroad rail for raising said making and breakinglever,

an elastic element connecting the means with the lever, said casingbeing formed under one end of said lever with a pocket, a diaphragmarranged to close said pocket, a connection between said lever anddiaphragm, and a check valve which admits air to said chamber butprevents the outflow of air therefrom.

12. In a circuit controlling instrument, the combination with a casing,of a making and breaking lever pivoted in said casing, means actuated bythe deflection of a railroad rail 55 for raising said making andbreaking lever,

an elastic element connecting the means with the lever, said casingbeing formed under one end of said lever with a pocket, a diaphragmarranged to close said pocket, a connection between said: lever anddiaphragm, a check valve which admits air to said chamber but preventsthe outflow of air therefrom, and an outlet valve for said chamber whichmay be set so as to vary the outflow of air therefrom.

18. The combination with a circuit controlling instrument operated bydeflection of a rail, of mechanism also operated by the deflection ofthe same rail which when first actuated prevents the circuit controllingin strument from functioning; said mechanism 7 including means wherebysaid mechanism is positively returned toits normal position.

1%. The combination with mechanism operated by deflection of arail formaking and breaking an electric circuit, of mechanism also operated bythe deflection of saidrail which when first actuated interlocks withsaid first named mechanism so as to prevent the same from functioning.

15. The combination with mechanism operated by deflection of a rail formaking and breaking an electric circuit, said mechanism having anelastic connection with said rail, of mechanism also operated bydeflection of said rail which'whcnflrst actuated inter' looks with saidfirst named mechanism so as to prevent the same from functioning.

16. The combination with a circuit controlling instrument comprising apivoted element adapted to be rocked by deflection of a rail, of aninterference instrument also. operated by the deflection of said railcomprising a bolt adapted, if said interference instrument is firstactuated, to be interlocked with the pivoted element of said circuitcontrolling instrument.

17. The combination with a circuit controlling instrument comprising apivoted element adapted to be rocked by deflection of a rail, of aninterference instrument also operated by the deflection of said railcomprising a spring retracted bolt adapted, if said interferenceinstrument is first actuated, to be interlocked with the pivoted elementof said circuit controllinginstrument.

'18. The combination with a circuit controlling instrument comprising apivoted pivoted element, means actuated by the deflection of said railfor rocking the same, and a locking member moved by said pivoted elementso as to interlock with said first named mechanism.

20; The combination with mechanism for making and breaking an electriccircuit, of an interference instrument comprising a pivoted element, anelastic connection between said pivoted element and a rail through whichsaid element is rocked by deflection of the rail, a bell crank adaptedto be rocked by the movement of said element, and a spring pressedlocking member adapted to interlock with said first named mechanism.

21. The combination with a railroad track and an electrically energizedinstrument, of two circuit making and breaking devices for opening andclosing a circuit adapted to efiect the energization of said instrument,one normally open and the other normally closed, which devices areadapted to be actuated by the passage of a train over spaced points onsaid track, and a third device actuated by the passage of the train overan intermediate point on the track which operates when actuated beforeone of said two first mentioned devices is actuated to prevent thatdevice from operating to affect the circuit through said instrument.

22. The combination with a railroad track and an electrically energizedinstrument, of

two circuit making and breaking devices for opening and closing acircuit adapted to effect the energization of said instrument, onenormally open and the other normally closed which devices are adapted tobe actuated by the passage of a train over spaced points on said track,and a third device actuated by the passage of the train over anintermediate point on the track which operates, when actuated before thenormally open device is actuated, to prevent that device from closingthe circuit in which it is located.

23. The combination with a railroad track and an electrically energizedinstrument, of a making and breaking device normally open and adapted tobe closed by passage of a train over a given point on the track, a relayin circuit with said device, a second make and break device normallyclosed and adapted to be opened by the passage of a train over anothergiven point on the track, said electrically energized instrument havinga circuit including said second make and break device which circuit isclosed by said relay, and a device actuated by the passage of the trainover a point on the track intermediate the first two points, which, whenactuated, before the first named make and break device is actuated,prevents that device from closing the circuit in which it is located. 7

EUGENE W. VOGEL.

Witnesses:

L. A. FALKENBERG, G. Y. SKINNER.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of ratenu. Washington, -D. 0.

Corrections in Letters Patent No. 1,189,316.

It is hereby certified that in Letters Patent No. 1,189,316, grantedJuly 4, 1916,

upon the application of Eugene W. Vogel, of Oak Park, Illinois, for animprovement in Circuit-Controlling Instruments, errors appear in theprinted specification requiring correction as follows: Page 4, line 95,claim 3, before the Word between" insert the words of power; and sameline after the Word means insert a period; same page and claim, strikeout line 96; and that the said Letters Patent should be read with thesecorrections therein that the same may conform to the record of the casein the Patent Ofiice.

Signed and sealed this 22d day of August, A. D., 1916 [SEAL] F. W. H.CLAY,

Acting Commissioner of Patents. 0].. 24635.

